…First was a call to the editor. Youth voice, which was heard simultaneously and joy, and pride, and impatience to share all these feelings said that we have built and successfully tested an unusual inflatable boat. Pulled out of the backpack, it is a rectangular panel: inflated “frog” becomes a raft (a large mattress); laced or strapped on end edges turns into a boat capable of taking three people and cargo. And all of this is made of a thin fabric “silverfish” with a rubber adhesive.WASHER — SCREWDRIVER?
If not at hand will be a screwdriver, do not worry: the bolt, two nuts and a washer of suitable thickness in many cases with success will help you to wrap or remove the screw or bolt.










